Location History:
- Tokyo, JP (1988 - 1998)
- Shizuoka, JP (2000)
Company Filing History:
21 out of 35,689 
2 out of 5,290 
Years Active: 1988-2000
Title: Masahiro Matai: A Pioneer in Radio Technology
Introduction
Masahiro Matai, based in Tokyo, Japan, is an accomplished inventor with a remarkable portfolio comprising 21 patents. His innovations primarily focus on advancements in radio technology, showcasing his deep understanding of communication systems.
Latest Patents
Among Masahiro Matai's latest innovations is the patent titled Constitution of Protrusible External and Fixed Internal Antenna for a Radio Portable Remote Terminal Device. This inventive design features two antennas, where the inactive antenna enhances the performance of the operational one. The external antenna can be extended from or retracted back into the enclosure, while the internal antenna includes a ground section and a detector to assess the position of the external antenna. A sophisticated switching circuit allows seamless transitions between the external and internal antennas, optimizing the radio section's performance based on the antenna's state.
Another significant patent from Matai is the PLL Synthesizer Radio Paging Receiver Capable of Reducing an Average. This patent describes a radio paging receiver that receives call signals, incorporating a control section that enables intermittent operation of various components like the PLL synthesizer, frequency converter, and demodulator. With distinct loop filters that operate based on two different time constants, this design enhances efficiency during both short and long intermittent cycles.
Career Highlights
Masahiro Matai has contributed his talents to prestigious organizations such as NEC Corporation and Nippon Telegraph and Telephone Corporation. His work at these companies has played a crucial role in his development as an inventor, allowing him to explore innovative solutions in radio technology.
Collaborations
Throughout his career, Masahiro Matai has collaborated with various professionals, including notable coworkers like Shinjiro Umetsu and Toshihiro Mori. These partnerships have facilitated the exchange of ideas and spur creative solutions that have enriched his body of work.
Conclusion
Masahiro Matai stands out as a significant figure in the realm of radio technology innovation. With 21 patents to his name, his contributions continue to influence communication systems profoundly. His latest patents showcase a blend of technical prowess and creativity, solidifying his reputation as a leading inventor in his field.